131211434343313 has 4 divisors (see below), whose sum is σ = 131213161271808. Its totient is φ = 131209707414820.

The previous prime is 131211434343271. The next prime is 131211434343377. The reversal of 131211434343313 is 313343434112131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131211434343313 - 2²⁹ = 131210897472401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131211434343013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 863350273 + ... + 863502238.

It is an arithmetic number, because the mean of its divisors is an integer number (32803290317952).

Almost surely, 2^{131211434343313} is an apocalyptic number.

It is an amenable number.

131211434343313 is a deficient number, since it is larger than the sum of its proper divisors (1726928495).

131211434343313 is an equidigital number, since it uses as much as digits as its factorization.

131211434343313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726928494.

The product of its digits is 93312, while the sum is 37.

Adding to 131211434343313 its reverse (313343434112131), we get a palindrome (444554868455444).

The spelling of 131211434343313 in words is "one hundred thirty-one trillion, two hundred eleven billion, four hundred thirty-four million, three hundred forty-three thousand, three hundred thirteen".